1. Check whether the Wi-Fi module is working
Open the Wi-Fi list page on your machine and confirm:
Whether the machine can scan and display the Wi-Fi networks around you;
Whether the Wi-Fi option is enabled.
If the machine cannot scan or load any Wi-Fi networks, this usually indicates a Wi-Fi module failure.
Since the Wi-Fi module is integrated into the screen and mainboard, you will need to replace both the screen and the mainboard to restore Wi-Fi functionality.

2. If the Wi-Fi list loads normally
This means the machine’s Wi-Fi hardware is working correctly. In this case:
Select your Wi-Fi network
Tap “Forget this network”
Reconnect again with the correct password